Ski exercising and rehabilitation apparatus

ABSTRACT

A ski-exercising and rehabilitation apparatus of the invention wherein the down-hill-run unit ( 22 ), has a system of rotatable rolls ( 25 ) mounted with bearings in external clamping beams ( 20 ) and ( 21 ) and in the central beam ( 26 ) so that their rotation axes lie in one arched plane, whereas said central beam ( 26 ) is supported on its ends with shock absorbers ( 27 ), whereas the ends of external clamping beams ( 20  and  21 ) are jointed at one end with the shorter articulated connecting rods ( 18  and  19 ) of variable lengths and at the other end with the longer articulated connecting rods ( 23  and  24 ) of variable lengths, the other ends of which are rotatably connected with respective discs of the gear wheels ( 13, 14, 15  and  16 ) mounted on the front drive shaft ( 11 ) and rear drive shaft ( 12 ), said external clamping beams ( 20  and  21 ) being also jointed to rocking levers ( 34  and  35 ) which are connected to actuators ( 36 ) mounted in the frame base ( 1 ) of the apparatus, whereas the light signs ( 54 ), imitating the positions of slalom poles, are located on the track mat ( 30 ) of said downhill-run unit ( 22 ) in form of bristled track mat banding arcwise the upper drive roll ( 32 ) and lower drive roll ( 31 ).

[0001] The object of this invention is the apparatus for ski exercisingand rehabilitation, intended to serve for both beginning andprofessional skiers as well as for persons rehabilitated, as it enablesexercising of those muscle groups which work during an real downhill runand rehabilitation through massage of feet, imitation of downhill orcross-country run, etc. and an improvement of the apparatus according toadditional patent application No. P-352640.

[0002] The ski exercising apparatus known from Polish patent applicationNo. 181049 consists of a frame base the main plane of which is slantedat acute angle in respect to the lower plane, whereas a track mat,provided with a springing bristled mat and with running rolls, islocated above the frame base and is connected rotatably with that baseby means of a lever. Besides, the frame base contains a front driveshaft and rear drive shaft and a springing element stimulating a freemovement of skis located between the deck and the main ski fixingelement. This apparatus is also equipped with the drive unit consistingof electric motor, worm gear and belt transmissions transferring thedrive onto the rear drive shaft and then to the front drive shaft andonto driving element of running rolls.

[0003] The drawback of the prior-art solution is its low universality,no possibility to use it with various types of ski equipment, forrehabilitation and, what is most important, to use it by beginningskiers, especially children, because the springing element stimulatingfree movement of skis restricts the free movement with skis and enforcesconstant concentration of the trainee on commanding the skis.

[0004] The objective of this invention is to design an apparatus, whichshall enable the skiers a comprehensive exercising at different speeds,including running over uneven terrain of different heights, randomlyvarying during downhill runs, training for beginners, training on anytype of skis, creating of skiing conditions on snow or icy surface, aswell as for the rehabilitation of many human organs.

[0005] The essence of the apparatus for ski exercising andrehabilitation of the present invention consists in that it has adownhill-run unit containing a system of rotatable rolls with bearingsin external clamping beams and in the central beam so that theirrotation axes lie in one arched plane whereas the central beam issupported on its ends with shock absorbers while the ends of externalclamping beams are jointed with shorter connecting rods and longerconnecting rods of variable lengths the other ends of which arerotatably connected with respective discs of the gear wheels mounted onthe front drive shaft and rear drive shaft.

[0006] Besides, the external clamping beams are jointed to rockinglevers connected to actuators mounted in the frame base of theapparatus. In turn, light signs imitating the positions of slalom polesare located on the track mat of the downhill-run unit in form of abristled track mat banding arcwise the upper drive roll and lower driveroll below, whereas the damping and cooling nozzles, connected withrefrigerating unit, are located in the lower portion under the track matwhile monitoring unit and the support poles with handles are mounted inthe front part of the apparatus. At least one pole is provided with thecontrol panel electrically connected with the main drive motor, with thedrive motor of the upper or lower roll, with the refrigeration unit,with signal lights, monitoring unit, diagnostic apparatus with thecontrol panel, air conditioner and actuators. Preferably the shaft ofthe drive motor constitutes one of the drive rolls, lower or upper one,and the support poles are connected to each other and to the bow withthe safety belt provided with safety cut-out switches on its internalsurface while the endless track mat has 5 cm long bristles.

[0007] The improved solution the apparatus for ski exercising andrehabilitation of the present invention is provided with the frequencyconverter electricity interconnected with the drive motor and, through atransmission, with the upper drive roll and/or lower drive roll, theframe base of the apparatus is provided with wheels, while the sideguards of the base are provided with a flange at their upper edge,crosswise to the track mat. Preferably the drive unit of thedownhill-run unit is provided with upper electro-drum banded togetherwith the lower drive roll by the bristled track mat, upper and/or lowerelectro-drum banded by the bristled track mat. It is preferred also thata track slide plate of arcwise longitudinal cross-section similar tocircular sector be located between external clamping beams and supportedwith shock-absorbers in each corner. Said plate is made of material withhigh resistance to frictional wear and has its upper surface, contactingthe track mat, polished. Besides, the ends of external clamping beamsand those of the central beam in this unit are jointed with actuatorsmounted in the lower part of its frame base and the track mat rims areprovided from the bottom with guiding elements, which preferably have across-sectional trapeze shape, located in circumferential grooves of thesame shape as the guiding elements, made at the ends of driving rollsand/or electro-drums or, when the external clamping beams have slotguides of arcwise contour on their inner surfaces in which the rims ofthe track mat are located. It is also preferred that the externalclamping beams contain in bearings additional rotatable rolls, locatedon the outside of drive rolls and/or electro-drums, banded with endlesscarrier belt driven by said band whereas the diameters of the rotatablerolls are smaller than those of the driving rolls and/or of theelectro-drums. Besides, in this apparatus the driving rolls and/or theelectro-drums and/or additional rolls have cylindrical shapes, or elsetheir ends have truncated cone shapes. Preferably, the apparatus of theinvention is provided with skis the lower slide surface of which is madeof antistatic material with high resistance to frictional wear, hightemperatures, preferably of carbon fiber of Ni—Cr steel.

[0008] The basic advantage of the invention is its universality ofapplication enabling the use of. carving, traditional (downhill),cross-country and water skis as well as snowboards. The apparatus may beused by both advanced ski trainees and beginners who wish to learnskiing. The apparatus may also be used for physical mobilityrehabilitation of tarsal joints, massage of feet through acting onreceptors in feet soles, stimulation of blood circulation, as well ascross-country running exercise at various upward and downward slopes. Aperson under rehabilitation may be subject to health diagnostic such asheart-rate and blood pressure measurement as well as to effort-relatedhealth assessment. The apparatus enables also the training of skiingthrough moguls of variable heights thus serving for training thesemuscle groups which are working in a real downhill skiing. The apparatusenables also a creation of winter conditions on the bristled tract matby spraying water over it and then freezing it. Such cycle may be eithercontinuous, variable or intermittent and thus to simulate the realconditions existing on mountain-side slope. It ensures also the safetyof exercising because the safety belt restricts its field and, in caseof exceeding it, which is tantamount to a loss of balance, safetycut-out switches switch the main and lower-roll drive motors off. Theadvantage of his invention is also a direct drive of one of the driverolls, thus eliminating the need for using additional transmissions fromthe main drive motor. Besides the advantage of the invention is that amonitoring unit, installed on the stationary strip, visualizes thetraining on the apparatus synchronized with the virtual world on thescreen of monitor and, due to this, one may choose a landscape in realterrain, e.g. skiing in Swiss Alps. The noise of trainee's skiing mayalso be heard. The training on bristled track mat and light signs on itis shown on the screen as skiing between poles. In this way the traineemay reproduce his/her skiing and check whether his/her exercisecontained mistakes or errors. It creates a potential for conducting aslalom hall competition event with the use of the apparatus. One canalso read the skiing speed and the mileage as well as show the realdownhill ski route. Having independent drives of bristled track matmovement and the speed of the downhill-run unit, various changeablevariants may be achieved during the exercise. It avoids the exercisingmonotony and permits correction of skiing mistakes and errors in a shorttime. All these advantages of the apparatus of the invention providesafety to the trainee, a feeling of skiing in real conditions withoutleaving home and without costly, unsafe and long lasting trips in themountains in search for skiing courses.

[0009] Application of castor wheels in the apparatus according to theinvention facilitates its placing into a desired location in a specificroom whereas the providing of skiing track mat with side V-belts andtheir driving shafts or electro-drums with grooves of the same profileas the V-belts make the lateral traveling of the track mat impossible.Providing the side guards with flanges crosswise to the track mat, aswell as providing the inner walls of external clamping beams with slotguides of arcwise contour also prevents the lateral traveling of thetrack mat. In turn, the equipping of external clamping bars of thedownhill run unit with additional rolls enables banding of drive shaftsand electro-drams with costly carrier belt and said rollers withbristled mat driven by said belt, which in turn enables a longer periodof service of the carrier belt because in case of local wear of thebristles on the track mat only the much cheaper bristled track mat issubject to replacement.

[0010] The application of actuators and frequency converter in thedown-hill-run unit drive system enabled elimination of hitherto usedshorter and longer connecting rods of variable length as well as theworm gear and belt transmissions, whereas the application of slide platepermitted elimination of electrostatic charges and enabled aconsiderable lengthening of ski life, which used to be very shortbecause of high temperature generated between ski surface and the trackmat.

[0011] The invention is presented as the examples of embodiments infigures, where FIG. 1 is the axonometric projection of the apparatuswith the frame base with its side guards, resting on castor wheels, withtrack mat, support poles, safety belt, monitoring unit and the airconditioner, FIG. 2 is the axonometric projection of the frame base ofthe apparatus with its drive unit and downhill-run unit after track-matand side-guard removal, FIG. 3 is the cross section along the A-A linefrom FIG. 1 of the downhill-run unit with the track mat, FIG. 4 is thetop view of the same downhill-run unit of the apparatus, FIG. 5 is thecross section along the B-B line from FIG. 4 of the same downhill-rununit of the apparatus, FIG. 6 is the axonometric projection of the framebase of the apparatus after track-mat and side-guard removal, withdownhill-run unit provided with actuators, drive shafts or cylindricalelectro-drums and the drive unit provided with frequency converter, FIG.7 is the axonometric projection of the fragment “T” from FIG. 2 of thedownhill-run unit provided with drive shafts or cylindrical-and-conicalelectro-drums, FIG. 8 is the axonometric projection of the frame base ofthe apparatus after track-mat and side-guard removal, with downhill-rununit provided with actuators, cylindrical-and-conical drive shafts aswell as the drive unit with frequency converter, FIG. 9 is theaxonometric projection of the same frame base of the apparatus with thedownhill-run unit the external clamping beams of which are provided withdrive shafts or electro-drums and with additional rotatable rolls inexternal bearings, FIG. 10 is the top view of the fragment of thedownhill-run unit from FIG. 9, FIG. 11 is the cross section along theE-E line from FIG. 10 of the downhill-run unit of the apparatus with thetrack mat, FIG. 12 is the top view of the fragment of the downhill-rununit provided with drive shafts or electro-drums and the with slideplate between them, FIG. 13 is the top view of the fragment of thedownhill-run unit provided with drive shafts or electro-drums as well aswith additional rotatable rolls and the slide plate between them, FIG.14 is the cross section along the C—C line from FIG. 6 of the fragmentof downhill-run unit with the slot guide of its track mat, FIG. 15 isthe cross section along the D-D line from FIG. 9 of the fragment ofdownhill-run unit with the trapeze guide of its track mat and FIG. 16 isthe cross section along the F—F line from FIG. 1 of the fragment of theapparatus.

[0012] The apparatus of this invention consists of the frame base 1,resting on castor wheels 2, provided with a brake with the main drivemotor 3, mounted in said frame base, connected through reducing gear 4with the worm gear 5. The frame base 1 is formed by the upper arcwiseand slanted side frame beams 6 and 7, with their arc convexity upward.Besides, the frame base 1 has bottom cross bars 8, supportive verticalbeams 9 and bottom side beams 10. The lower part of the frame basecontains in bearings the front and rear drive shafts, 11 and 12,respectively, driven with the main drive shaft 3. Driving chain wheels,13 and 14, are mounted on one and the other ends of the front drive 11and driving chain wheels, 15 and 16, are mounted on one and the otherends of the rear drive shaft 12. Driving chain wheels, 13, 14, 15 and 16have the same diameters and constitute chain transmissions with chains17. Ends of shorter connecting rods 18 and 19 of variable length arepivoted to chain disks of the driving chain wheels, 13 and 14, mountedon front drive shaft 11, whereas their other ends are pivoted toexternal clamping beams 20 and 21 of the downhill-run unit 22. On theother hand, the ends of longer connecting rods 23 and 24 of variablelength are pivoted to driving chain disks of driving chain wheels, 15and 16 mounted on the rear drive shaft 12, whereas their other ends arepivoted to external clamping beams 20 and 21 of the downhill-run unit22. The downhill-run unit 22 has a system of rotatable rolls 25 withbearings in external clamping beams 20 and 21 as well as in the centralbeam 26 supported at its ends by shock absorbers 27. The central beam 26is located between two rows of rotatable rolls 28 and 29 constituting asystem of rotatable rolls 25. The downhill-run unit 22 is also providedwith endless track mat 30 with 3-cm long bristles as well as with lowerdrive roll 31 and upper drive roll 32, constituted by the rotor shaft ofdrive motor 33. Besides, the external clamping beams 20 and 21 arejointed with rocking levers 34 and 35 coupled with actuators 36 mountedin frame base 1. The rotatable rolls 28 and 29 have smaller diametersthan the upper and lower drive rolls, 32 and 31, with external pivots 37are arranged along the ‘l’ arc in external clamping beams 20 and 21,while their internal pivots 38 are arranged along the similar arc in thecentral beam 26. The endless bristled track mat 30 is installed on theupper and lower drive rolls, 32 and 31, and supported by with rotatablerolls 28 and 29, thus forming a surface with arcwise contour. Preferablythe section “d”, formed between the straight line “c”, joining thecontact points of the endless bristled track-mat 30 with the upper andlower drive rolls, 32 and 31, and the contact surface of said track matwith the rotatable rolls 28 and 29 in the highest point “D” of thetrack-to-roll contact located on the line “f” perpendicular to thestraight line “c”, is 4 cm. Such location of the endless bristled trackmat 30 and rotatable rolls 28 and 29 enables the training with any typeof ski equipment.

[0013] There are wetting and cooling nozzles 39 arranged all through thewidth of the endless bristled track mat 30 and connected with therefrigerating unit 40. They first supply water onto the surface of thistrack mat and then freeze it.

[0014] A monitoring unit 45, located in the front part of the stationarystrip 41 between the support poles with control panel 43 at the handle44 and breaker switches, synchronized with the functioning of the entireapparatus, wherefrom the skiing speed and the number of kilometerspassed may be red. The screen of said unit may visualize the realdownhill-run route in the terrain. In turn, a rigid safety belt 48 isfixed to one support pole 42, to bow 46 located on the rear guard 47 andto the other pole 42, whereas both the bow 46 and the rigid safety belt48 and support pole 42, are provided with safety cut-out switches 49enabling total stop of motion of the downhill-run unit in case thetrainee has exceeded his/her field of maneuver. The apparatus is alsoequipped with the diagnostic unit for the trainee with control panel 50installed on the support pole 42 as well as air conditioner 51 locatedin the lower part of the apparatus. The side beams 6, 7 and 10 of theframe base 1 are covered by side guards 52 which have flanges 53 ontheir internal peripheries crosswise to the endless bristled track mat30. There are light signals 54 simulating the positions of slalom trackpoles on the endless bristled track mat 30.

[0015] In other examples of execution of this invention (FIGS. 6, 8 and9) instead of drive rolls 31 and 32 mounted on the ends of externalclamping beams 20 and 21 of the downhill-run unit 22, there are thelower electro-drum 55 and upper electro-drum 56 or upper electro-drum 56and the lower drive roll 31 or lower electro-drum 55 and the lower driveroll 32, whereas said electro-drums, or electro-drum with respectiveroll, are banded by the endless bristled track mat 30.

[0016] In the subsequent examples of execution of this apparatus (FIGS.6 and 9) its driving unit is provided with frequency converter 57installed in the lower part of the frame base 1, electrically connectedwith the main drive motor 3 as well as, through a belt transmission 58,with the upper drive roil 32 or lower drive rod 31.

[0017] In the subsequent examples of execution the ends of drive rolls31 and 32 and electro-drums 55 and 56 of the downhill-run unit 22 havethe shape of truncated cones 59, whereas the ends of external clampingbeams 20 and 21 and the central beam 26 of said unit are jointed withactuators 60 installed in the lower part of the frame base 1 (FIGS.6-9).

[0018] In the other example of execution, presented in FIG. 12 and 13,the slide plate 61 for the endless bristled track mat 30 is locatedbetween external clamping beams 20 and 21 of the downhill-run unit 22and drive rolls 31 and 32 or electro-drums 55 and 56 and is supportedwith shock absorbers 62 in each corner. Said slide plate 61 is made ofchromium nickel steel, has elongated arcwise shape similar to circularsector and its upper surface contacting the endless bristled track mat30 is polished.

[0019] In a further example of execution (FIGS. 12, 13 and 15) the rimsof the endless bristled track mat 30 are provided at its back side withV-belts 63, located and guided in the circumferential grooves 64 of thesame profile as the V-belts 63 made at ends of drive rolls 31 and 32and/or electro-drums 55 and 56.

[0020] In the other example of execution (FIGS. 9 and 14) the externalclamping beams 20 and 21 of the downhill run unit 22 have slot guides 65of arcwise outline on their internal surfaces which take in the rims ofthe endless bristled track mat 30.

[0021] In a further example of execution of the apparatus of theinvention (FIGS. 10 and 11) the external clamping beams 20 and 21 of thedownhill-run unit 22 contain in bearings additional rotatable rolls 66and 67 located on the outside of the driving rolls 31 and 32 and/orelectro-drums 55 and 56 whereas the driving rolls, 31 and 32 and/or theelectro-drums, 55 or 56 are banded with endless carrier belt 68 whereasthe additional rotatable rolls 66 and 67 are banded with endlessbristled track mat 69 driven with carrier belt 68, whereas the diametersof rotatable rolls 66 and 67 are smaller Man those of the drive rolls 31and 32 and/or electro-drums 55 and 56.

[0022] The apparatus of the invention executed in all above describedversions is equipped with skis the bottom slide surface of which is madeof carbon fiber, whereas in the other embodiment said surface is made ofchrome-nickel steel.

[0023] The functions of the apparatus are realized in two basicvariants: the trainee, positioned on the endless bristled track mat 30,uses the control panel to switch ON the main drive motor 3 and adjustsits slope, then he/she starts the drive motor 33 of the upper drive roll32 which moves the endless bristled track mat 30 and said mat, in turn,puts into motion a system of rotatable rolls 25 and the lower drive roll31 The trainee holds the grip handles 44 of support poles 42, beginsexercising while performing various maneuvers and motions as are doneduring downhill skiing. He/she may train slalom skiing because theendless bristled track mat 30 is provided with light signs 54 for suchskiing. Without skis, the trainee may run upward or downward, in shoesor without, and perform various rehabilitation exercises, whileselecting the slope and speed of the endless bristled track mat 30 tosuit his/her weight.

[0024] For beginners, especially children, an additional horizontalsupport bar, not shown on the drawing, may be fixed between the supportpoles 42. The trainee, while holding it, may concentrate on arrangingand lifting of skis, thus getting accustomed to downhill skiing. Theapparatus may be used for training of water skiers. For that, the motor33 is run in a reverse sense of drive rotation. The trainee may watchentire course of his/her maneuvers, and the distance (kilometers)passed, on the screen of the monitoring unit 45 and check what and wheremistakes has been made.

[0025] In case of training the skiing over moguls the trainee uses thecontrol panel 43 to start the main variable-speed drive motor 3 on whichdrives the reduction gear 4, worm gear 5 and rear drive shaft 12, chaindrive wheels 15 and 16 and then chains 17 and drive wheels 13 and 14transmit the drive to the front drive shaft 11.

[0026] Then, from chain wheels 13-16, through shorter connecting rods 18and 19 and longer connecting rods 23 and 24 of variable length, as wellas rocking levers 34 and 35, the downhill-run unit 22 is put intoshifting and self-aligning motion, thus enforcing the skiing overmoguls. The drive motor 33 is also ON and the endless bristled track mat30 moves in a mode that can be varied during training. Also, duringtraining, the speed of the main drive motor 3 can be varied, the lengthsof shorter connecting rods, 18 and 19 as well as 23 and 24, and those ofrocking levers 34 and 35, can be changed as well.

[0027] As a result, a number of skiing combinations are achievable forthe trainee and training satisfaction while the exercising monotony islimited to minimum. The monitoring unit 45 enables reading of skiingspeed, and the distance (kilometers) passed in specific time, on thescreen. Bow 46 and a rigid safety belt 48 joining the bow with supportpoles 42, protect the trainee against balance-loss threatening positionsof the body, whereas the safety cut-out switches 49 protect the traineein case of exceeding the motion field on the endless bristled track mat30. Then, each touch of the rigid safety belt 48 with trainee's body orpositioning it in the line of the light (sender-receiver) signal of thespecific cut-out switch shall stop of the apparatus. In both variantsthe trainee may have the skiing approximated to winter conditions byswitching ON the refrigeration unit 40. Through damping and coolingnozzles 39 said unit will freeze water all over the external surface ofthe endless bristled track mat 30 and will maintain during training anystate of the surface similar to skiing over a snow-covered slope. Thecontrol panel 50 and the diagnostic unit connected to it enables alsoreading the health state of the trainee—his/her blood pressure, heartrate. Also, on starting the air-conditioning unit 51 air is blown ontothe trainee thus providing a feeling of skiing in free air, whereasduring skiing over moguls the rotatable rolls 28 and 29 yield, togetherwith the central beam 26, and then the trainee sags onto the endlessbristled track mat 30. In case of using the electro-drums 55 and 56 ofactuators 60, frequency converter 57, additional rotatable rolls 66 and67 as well as the slide plate 61 the principle of operation of theapparatus in analogical to that described above.

What is claimed is:
 1. A ski-exercising and rehabilitation apparatushaving a frame base provided with the drive unit mechanically connectedwith the front and rear drive shafts and a downhill-run unit providedwith rotatable rolls banded by a bristled track mat, which upper surfaceis situated at acute angle to the lower plane of the base of theapparatus and having vertically variable position wherein thedownhill-run unit (22), has a system of rotatable rolls (25) mounted inbearings in external clamping beams (20 and 21) and in the central beam(26) so that their rotation axes lie in one arched plane, whereas saidcentral beam (26) is supported on its ends with shock absorbers (27),whereas the ends of external clamping beams (20 and 21) are jointed atone end with the shorter articulated connecting rods (18 and 19) ofvariable lengths and at the other end with the longer articulatedconnecting rods (23 and 24) of variable lengths, the other ends of whichare rotatably connected with respective discs of the gear wheels (13,14, 15 and 16) mounted on the front drive shaft (11) and rear driveshaft (12), said external clamping beams (20 and 21) being also jointedto rocking levers (34 and 35) which are connected to actu-ators (36)mounted in the frame base (1) of the apparatus, whereas the light signs(54), imitating the positions of slalom poles, are located on the trackmat (30) of said downhill-run unit (22) in form of bristled track matbanding arcwise the upper drive roll (32) and lower drive roll (31). 2.The apparatus according to claim 1 wherein damping and cooling nozzles(39), connected with refrigerating unit (40), are located in the lowerportion under the track mat (30) while the monitoring unit (45) and thesupport poles (42) with handles (44) are mounted in the front part ofthe apparatus, whereas at least one of said poles is provided with atleast one control panel (43) electrically connected with the main drivemotor (3), with the drive motor (33) of said upper roll (32) or saidlower roll (31), with said refrigeration unit (40), said signal lights(54), said monitoring unit (45), with diagnostic apparatus with thecontrol panel (50), air conditioner (51) and actuators (36).
 3. Theapparatus according to claim 1 or 2 wherein the shaft of the drive motor(33) constitutes one of the drive rolls, (31 or 32).
 4. The apparatusaccording to claim 1 or 2 wherein the support poles (42) are connectedto each other and to the bow (46) with the safety belt (48) providedwith safety cut-out switches (49) on its internal surface.
 5. Theapparatus according to claim 1 or 2 wherein the endless track mat (30)has 5 cm long bristles.
 6. The apparatus according to claim 1 whereinthe drive unit of the downhill-run unit (22) is provided with thefrequency converter (57) electricity interconnected with the main drivemotor (3) and through the transmission (58) with the upper drive roll(32), whereas the frame base (1) of the apparatus is provided withwheels (2), while the side guards (52) of the base are provided withflange (53) at their upper edges crosswise to the bristled track mat(30).
 7. The apparatus according to claim 1 or 6 wherein the drive unitof the downhill-run unit (22) is provided with upper electro-drum (56)banded, together with the lower drive roll (31), by the bristled trackmat (30).
 8. The apparatus according to claim 1 or 6 wherein the driveunit of the downhill-run unit (22) is provided with lower electro-drum(55) banded, together with the upper drive roll (32), by the bristledtrack mat (30).
 9. The apparatus according to claim 1 or 6 wherein thedrive unit of the downhill-run unit (22) is provided with upperelectro-drum (56) and the lower electro-drum (55) banded by the bristledtrack mat (30).
 10. The apparatus according to claim 1 or 6 wherein thefrequency converter (57) is connected through the transmission (58) withthe lower drive roll (31).
 11. The apparatus according to claim 1 or 6wherein the frequency converter (57) is connected through thetransmission (58) with the upper drive roll (32) and with lowerelectro-drum (55).
 12. The apparatus according to claim 1 or 6 whereinthe frequency converter (57) is connected through the transmission (58)with the lower drive roll (31) and with upper electro-drum (56).
 13. Theapparatus according to claim 1 or 6 wherein the slide plate (61) for thebristled track mat (30) is located between external clamping beams (20)and (21) of the downhill-run unit (22), whereas said slide plate hasarcwise longitudinal cross-section similar to circular sector and issupported with shock absorbers (62) in each of its corners.
 14. Theapparatus according to claim 13 wherein the slide plate (61) is made ofmaterial of high resistance to frictional wear, preferably of chromiumnickel steel and its upper surface contacting the bristled track mat(30) is polished.
 15. The apparatus according to claim 1 or 6 whereinthe ends of external clam-ping beams (20 and 21) and those of thecentral beam (26) in this unit are jointed with actuators (60) mountedin the lower art of the frame base (1).
 16. The apparatus according toclaim 1 or 6 wherein the rims the bristled track mat (30) are providedon the bottom side with guiding elements (63), which prefe-rably have across-sectional trapeze shape, located in circumferential grooves (64)of the same shape as said guiding elements (63), made at the ends ofdriving rolls (31 and 32) and/or electro-drums (55 or 56).
 17. Theapparatus according to claim 1 or 6 or 15 wherein the external clampingbeams (20 and 21) have slot guides (65) of arcwise contour on theirinner surfaces in which the rims of the track mat (30) are located. 18.The apparatus according to claim 1 or 6 or 15 or 17 wherein the externalclam-ping beams (20 and 21) of the downhill-run unit (22) contain inbearings additional rotatable rolls (67) located on the outside of thedriving rolls (31 and 32) or//and the electro-drums (55 or 56), whereasthe driving rolls (31 and 32) and/or the electro-drums (55 or 56),banded with endless carrier belt (68), whereas the additional rotatablerolls (67) are banded with the endless bristled track mat (69) drivenwith carrier belt (68), whereas the diameters of the rotatable rolls(67) are smaller than those of the driving rolls (31 and 32) and/or ofthe electro-drums (55 and 56).
 19. The apparatus according to claim 1 or6 or 18 wherein the driving rolls (31 and 32) and/or the electro-drums(55 or 56) and/or additional rotatable rolls (67) have cylindricalshapes.
 20. The apparatus according to claim 1 or 6 or 18 wherein theends of driving rolls (31 and 32) and/or the electro-drums (55 or 56)have truncated cone shapes (59).
 21. The apparatus according to claim 18or 19 wherein the ends of additional rotatable rolls (67) have truncatedcone shapes (59).
 22. The apparatus according to claim 1 equipped withskis, the lower slide surface of which is made of antistatic materialwith high resistance to frictional wear, high temperatures, preferablyof carbon fiber of Ni—Cr steel.